INA186A2QDBVRQ1

$1.15

Description：IC CURR SENSE 1 CIRCUIT SOT23-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:0729c0f2b94a Category: Instrumentation, Op Amps, Buffer Amps Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC CURR SENSE 1 CIRCUIT SOT23-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Amplifier Type：Current Sense
Number of Circuits：1
Output Type：Rail-to-Rail
Slew Rate：0.3V/µs
Gain Bandwidth Product：-
Current - Input Bias：500 pA
Voltage - Input Offset：3 µV
Current - Supply：48µA
Current - Output / Channel：-
Voltage - Supply Span (Min)：1.7 V
Voltage - Supply Span (Max)：5.5 V
Operating Temperature：-40°C ~ 125°C (TA)
Grade：Automotive
Qualification：AEC-Q100
Mounting Type：Surface Mount
Package / Case：SC-74A, SOT-753
Supplier Device Package：SOT-23-5
-3db Bandwidth：37 kHz

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INA186A2QDBVRQ1

Overview

The INA186A2QDBVRQ1 is an automotive-grade, low-power current-sense amplifier with a fixed gain of 50 V/V. It operates on a single supply from 1.7 V to 5.5 V and supports common-mode voltages from -0.2 V to +40 V. The device features a typical quiescent current of 48 µA and input bias current of 500 pA. It offers a minimum common-mode rejection ratio of 120 dB and a maximum gain error of ±1%. The component is qualified under AEC-Q100 Grade 1 standards for operation between -40°C and +125°C.

Feature Summary

Capacitively coupled front-end architecture provides high common-mode rejection and low input bias currents.
Rail-to-rail output swing capability allows linear sensing near both the positive supply rail and ground.
Low offset voltage extends dynamic range, enabling accurate measurements with smaller sense resistors.

Applications

Body control modules (BCM)
Telematics control units
Emergency call (eCall) systems
12-V battery management systems (BMS)

Procurement Notes

Verify that the specific part number matches the required gain option and package type. Confirm AEC-Q100 qualification status if automotive compliance is mandatory. Ensure the design accounts for the unidirectional nature of the SOT-23-5 package variant regarding bidirectional sensing requirements.

Selection Notes

Select this component when a fixed gain of 50 V/V is required for automotive current monitoring. Consider the SOT-23-5 package constraints, which lack a reference pin for bidirectional operation compared to other variants. Evaluate the trade-off between the 37 kHz bandwidth and the ultra-low power consumption for battery-sensitive applications.

Part Context

This device belongs to the INA186-Q1 family of current-sense amplifiers designed for cost-sensitive automotive systems. The 'A2' suffix indicates a factory-set gain of 50 V/V, while 'DBV' specifies the 5-pin SOT-23 package. The 'Q1' designation confirms its qualification for automotive environments.